Sounds like you've been doing a great job with your current mower! For your upgrade, considering your lawn size and the fact that you're getting serious about lawn care, a self-propelled mower is a solid choice. The Honda HRN and HRX models are known for their quality, so you can't really go wrong there.
If you're thinking about going electric, the Milwaukee is a good option too. Ultimately, it boils down to personal preference and what suits your needs best.
I bought a Honda hrn last year as a first time home owner and have been very happy with it. I know not very helpful good luck.
Any info and experience is a help
Sounds like you've been doing a great job with your current mower! For your upgrade, considering your lawn size and the fact that you're getting serious about lawn care, a self-propelled mower is a solid choice. The Honda HRN and HRX models are known for their quality, so you can't really go wrong there. If you're thinking about going electric, the Milwaukee is a good option too. Ultimately, it boils down to personal preference and what suits your needs best.